Questions tagged [open-source]

Open source promotes a universal access via a free license to a product's design or blueprint, and universal redistribution of that design or blueprint, including subsequent improvements to it by anyone.

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FPGA: Verilog synthesis and Simulation - Open Source Appoach

I've been taking an CS Engineering Course where I've chosen minors in Electrical engineering. I'm a total noob here and no idea what's basically going in chip/FPGA Design process. I wished to ask if ...
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0 votes
2 answers
54 views

What's the voltage between series of voltage source and current source?

I'm confused with the voltage between point a and point b. Did the Vab only depend on the voltage source or i should consider the current source to sum it up?
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1 answer
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How to suppress unused C library functions in SDCC compiler?

Previously I used the COSMIC compiler for STM8 development. In a cosmic compiler, there is an argument called 'SPLIT' which can be passed while using it on the command line. This allows the linker to ...
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1 answer
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VCSEL to project a 2D array of dots [closed]

Background Apple iPhone Face ID uses VCSEL inside its dot projector to project infrared dots into a person face. Then an infrared camera captures the pattern to be used in a structured light algorithm ...
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1 answer
321 views

Open Source Simulator for FinFET

I tried using the PTM 14nm model file on LTSpice. I realized LTSpice does not support BSIM-CMG models. Is there any alternative like LTSpice, which can simulate FinFET models? Thank you.
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3 votes
2 answers
363 views

Free/Open Source alternative to TekScope Anywhere?

I'm trying to analyze a signal I got out of a scope on my PC and a program like TekScope Anywhere looks like it will do what I'm after. How can I get plots and data of the scope?
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1 vote
1 answer
727 views

How can I make this Component Tester more accurate?

EDIT: In the answer by Reroute (thank you, Reroute!), he references a very active 253 page EEVblog topic -- $20 LCR ESR Transistor checker project that probably includes exactly what I am seeking. I ...
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4 votes
5 answers
1k views

Are there fully open-source ASICs?

The Ethereum Foundation (an open-source project) will build an open-source ASIC to support its decentralised randomness beacon. To date, has the RTL of any ASIC been open-sourced or will the Ethereum ...
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2 votes
1 answer
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I would like an honest opinion about the PCB circuit I have designed

I made my own version of the VESC controller from the open source schematics. I'm a rookie at the rules for circuit traces but have read most of what is covered. I do not know if I should make the ...
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0 votes
3 answers
86 views

FOSS-base AVR ISP programming with USB

I've been using a free software stack for AVR programming - AVR GCC + avrdude on Linux, with parallel DIY programmer cable. Since the parallel bitbang programmer doesn't work with USB printer cables, ...
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1 vote
0 answers
165 views

Is it legal to design an open source AHB master?

Is it legal for open source cores to be compatible with the AMBA specification?
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11 votes
5 answers
3k views

Do open source libraries exist for VHDL the way they do for C++ or python?

When I'm approaching a problem in C++ or python, there are many libraries that exist which do the heavy lifting of my code. I'm thinking about GNU GSL, BOOST, or FFTW for C++, and NumPy or SciPy for ...
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Do OSH projects exist for all SoC parts? [closed]

My understanding of the main parts of an SoC are: Microcontroller RAM (volatile memory) Flash/solid state RAM (permanent memory) Clock/Oscillator Ethernet NIC Power Management Bus (to connect ...
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5 votes
1 answer
218 views

How appropriate are the open source licences currently in use for inclusion of HDL cores in a commercial product?

HDL IP cores targeted towards ASICs, FPGAs or both are often very useful for adding functionality to a project quickly. Commercially licences cores are available from many sources for a range of ...
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0 votes
2 answers
87 views

Does "open source hardware" only apply to controllers or to all components?

I'm new to the hardware world and am coming from a software background, and am trying to build a small device to attach to my PC via USB. I've heard the term "open source hardware" in reference to ...
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-1 votes
1 answer
110 views

What are the limitations of home-fabricating hardware by taking advantage of graphene only? [closed]

I'm really a newbie in electronics and materials science, but I was wondering about the new possibilities of circuits fabrication that come with graphene and the impact that all those things could ...
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8 votes
3 answers
2k views

Universal smd pad size, bad idea?

I'm working on an open source filter design where the PCB can be reused for many future designs. It is based around a Sallen-key filter since a few changes to the capacitors and resistors can change ...
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5 votes
3 answers
6k views

How to resolve this :Arduino UNO not working with Arduino wifi shield?

I'm having a lot of issues regarding interfacing an Arduino wifi shield with the Arduino Uno. My Arduino works fine when the shield is not attached to it but when I attach the shield, I'm unable to ...
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4 votes
1 answer
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Is there an FPGA based vector graphics card project?

I have been messing around with VGA projects as my latest interest. I have a Xilinx Spartan 3E 250K FPGA, which has just barely too little RAM for a full 640x480 frame buffer. So, I'm looking at ...
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24 votes
2 answers
30k views

Can Arduino be used in commercial products?

Is it legal for me to sell a product that's built with an Arduino? I know that it's open source, but does that mean I can sell my product for profit, or only for use in prototyping?
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2 votes
1 answer
2k views

Verilog : Are there any good sites contains open source projects? [closed]

i was wondering if there are any good sites who encourage open source in the fpga world using code in verilog or vhdl? since the open source community is very powerful and all the big firms ...
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34 votes
10 answers
24k views

Looking for a good freeware/open source PCB design software equivalent to Altium [closed]

I am familiar with Altium PCB design software in my workplace. But thats an expensive suite to maintain. Is there any decent enough free software which I can use at home for my pet projects? I have ...
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3 votes
1 answer
4k views

Electronic components in Powerpoint

Is there any (open) powerpoint library of components that could be used to build presentations with electrical/electronics circuit ?
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3 votes
3 answers
240 views

How to make a design more independent of a particular silicon vendor?

In many hardware projects it would be nice to have the freedom to switch between vendors easily, mainly microprocessors and microcontrollers. I can see many reasons for wanting to have this freedom, ...
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8 votes
3 answers
2k views

BSD style Open Source alternatives to CMSIS?

Since the licenses on CMSIS is unclear when it comes to open source, it is probably a violation to include the CMSIS in a open source project regardless if it using a GPL or BSD style license. Is ...
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2 votes
2 answers
578 views

Looking for a open-source ALU

I am looking for a open ALU to compute several equations like these: y1 = e^((constant1 - x)^2/(2*x)) y2 = constant2/y1 y3 = y2*constant3 + x*constant4 Where x ...
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5 votes
6 answers
592 views

Does my open source project need be Arduino based to be successful?

I am debating which micro-controller to use for a new open source hardware project. Spec wise, I would rather use an ARM Cortex M3, which is at a similar price-point to an Arduino(avr) based solution ...
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  • 561
14 votes
6 answers
10k views

Is there a directory of open source hardware projects? [closed]

I would like to print a fairly common circuit. But I don't want to design the PCB myself. Where should I look when searching for PCB layouts?
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40 votes
5 answers
11k views

Looking for open source FPGA hardware and dev tools [closed]

Investigated FPGA boards but cannot find open-sourced board and vendor-neutral FPGA development tools: The ORSoC manufacturer boasts open-sourcing on its website but I cannot really find strong ...
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  • 1,850
11 votes
4 answers
1k views

How do I detect open-source licence violations by companies?

Let's say I have an open source project with a license that prohibits commercial uses. Then comes along a commercial product with striking similarities in functionality/hardware. How would I go ...
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